Two approaches to the solution of problems of ultrasonic flaw metering: Analysis of a high-quality image of reflectors and correlation analysis of measured echo signals
Source abstract
Abstract
The problem of ultrasonic flaw metering consists in the obtainment of information on the reflector type, its dimensions, and the coordinates of its location. As the accuracy of determining the parameters of a discontinuity increases, the results of ultrasonic testing become more reliable. A highquality image of reflectors, which is reconstructed using the C-SAFT method with consideration for multiple reflections of pulses from the boundaries of a test object that makes it possible to determine the types and dimensions of reflectors, can be considered as one of the tools of flaw metering. However, the C-SAFT method disregards the features of reflections from discontinuities with nonuniform scattering indicatrices. As a development of flaw-metering methods, it is proposed to determine the parameters of a discontinuity from the results of comparison of the measured echo signals and estimated echo signals, which are calculated as functions of the discontinuity parameters. The results of using the proposed methods of ultrasonic flaw metering in numerical and model experiments, which demonstrate the working capacity of the proposed approach, are presented.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ultrasonics and Acoustic Wave Propagation · Geophysical Methods and Applications · Non-Destructive Testing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Ermolov, I.N., Teoriya i praktika ul’trazvukovogo kontrolya (Theory and Practice of the Ultrasonic Inspection), Moscow: Mashinostroenie, 1981.
2. Vopilkin, A.Kh., The Development of the Theory and Creation of Engineering Objects, Doctoral (Tech.), Dissertation, Moscow: 1987.
3. Badalyan, V.G., Assessing test results on the basis of acoustic images, Russ. J. Nondestr. Test., 2007, vol. 43, no. 4, pp. 240–255.10.1134/S1061830907040055 ↗
4. Samokrutov, A.A. and Shevaldykin, V.G., The evaluation capabilities of metal discontinuity rate by ultrasonic tomograph with digitally focused antenna array, Kontrol’. Diagnostika, 2011, no. 10, pp. 63–70.
5. Kravtsev, Yu.A. and Orlov, Yu.I., Geometricheskaya optika neodnorodnykh sred (Geometrical Optics of Inhomogeneous Media), Moscow: Nauka, 1980. doi: 10.1007/978-3-642-84031-9
6. Zernov, V., Fradkin, L., and Darmon, M., A refinement of the Kirchhoff approximation to the scattered elastic fields, Ultrasonics, 2012, no. 7, pp. 830–835.10.1016/j.ultras.2011.09.008 ↗
7. http://www.extende.com. Accessed May 26, 2015.
8. Danilov, V.N., On calculation of the DGS diagrams of an angle transducer, Russ. J. Nondestr. Test., 2010, vol. 46, no. 5, pp. 350–365.10.1134/S1061830910050062 ↗
9. Borovikov, V.A. and Kinber, B.E., Geometricheskaya teoriya difraktsii (Geometrical Theory of Diffraction), Moscow: Svyaz’, 1978.
10. Yavorskaya, I.M., Diffraction of plane steady-state elastic waves on smooth convex cylinders, Prikl. Mat. Mekh., 1965, no. 3, pp. 493–508.
11. Viktorov, I.A., Types of acoustic solid waves in solids (Review), Akust. Zh., 1979, no. 1, pp. 1–17.
12. Golubev, A.S., Reflection of plane waves from a cylindrical defect, Akust. Zh., 1961, no. 2, pp. 174–180.
13. Skuchik, E., Osnovy akustiki, (Foundations of Acoustics), in two vols., vol. 2, Moscow: Mir, 1976.
14. Babich, V.M., Lyalinov, M.A., and Grikunov, V.E., Metod Zommerfel’da-Malyuzhentsa v teorii difraktsii (Diffraction Theory: the Sommerfeld–Malyuzhinets Technique), St. Petersburg: St. Petersburg Gos. Univ., 2003.
15. Basatskaya, L.V. and Ermolov, I.N., Field of Angle-Beam Transducers with Near-Critical Wedge Angles, Defektoskopiya, 1985, no. 4, pp. 3–11.
16. Comparison of echo signals computed using CIVA program with experiments. http://www.extende.com/ultrasound-comparison-between-different-configurations-in-civa. URL: http://www.extende.com. Accessed May 26, 2015.
17. Chatillon, S., Fidahoussen, A., Iakovleva, E., and Calmon, P., Time of flight in versem at chingre construction of ultrasonic array data exploiting forwards models, in NDT in Canada, 2009, National Conf.
18. Bazulin, E.G., Determination of the reflector type from an image reconstructed using echo signals measured with ultrasonic antenna arrays, Russ. J. Nondestr. Test., 2014, vol. 50, no. 3, pp. 141–149.10.1134/S1061830914030036 ↗
19. Kovalev, A.V., Kozlov, V.N., Samokrutov, A.A., Shevaldykin, V.G., and Yakovlev, N.N., Pulse-echo method in testing of concrete. Interferences and spatial selection, Defektoskopiya, 1990, no. 2, pp. 29–41.
20. Holmes, C., Drinkwater, B.W., and Wilcox, P.D., Post-processing of the full matrix of ultrasonic transmitreceive array data for non-destructive evaluation, NDT and EInternational, 2005, vol. 38, pp. 701–711.10.1016/j.ndteint.2005.04.002 ↗
21. Bazulin, E.G., The use of the inverse C-SAFT method for equalizing the spatial sensitivity of reflector images, Russ. J. Nondestr. Test., 2015, vol. 51, no. 1, pp. 108–119. doi: 10.1134/S106183091502002310.1134/S1061830915020023 ↗
22. Bazulin, E.G., On the possibility of using the maximum entropy method in ultrasonic nondestructive testing for scatterer visualization from a set of echo signals, Acoust. Phys., 2013, vol. 59, no. 2, pp. 210–227. doi: 10.1134/S106377101302002410.1134/S1063771013020024 ↗
23. Bazulin, E.G., Vopilkin, A.Kh., and Tikhonov, D.S., Increasing the ultrasonic testing validity. Part 1. Determining the type of discontinuity during ultrasonic testing using antenna arrays, Kontrol’. Diagnostika, 2015, no. 8, pp. 7–22.10.14489/td.2015.08.pp.007-022 ↗
24. Bazulin, E.G., Vopilkin, A.Kh., and Tikhonov, D.S., Application of diffraction waves for ultrasonic defects measurement in algorithms of coherent recovery of high-quality images of reflectors, V Mire Nerazrush. Kontr., 2012, no. 3, pp. 20–25.